Based on the given above, the correct answer would be x-30y=100 and 10y=x-20, the first option. So how do we know that this is the correct option. So, let us check 0.01x - 0.3y = 1 <<multiply both sides by 100 (since there is 2 decimal places after the decimal point The result for this would be x - 30y = 100 (So this is correct) Next, y = 0.1x -2 << multiply both sides by 10 since there are only 2 decimals places after the decimal point The result would be 10y = x - 20 (So this is correct) Hope that answer helps
